package com.wangyk.rabbitmqconsole.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @Description:
 * 拦截所有的请求
 * @Author: wangyk
 * @CreateDate: 2019/1/9$ 14:43$
 * @UpdateUser: wangyk
 * @UpdateDate: 2019/1/9$ 14:43$
 * @UpdateRemark:
 * @Version: 1.0
 */
public class AllInterceptor implements HandlerInterceptor
{
    /**
     * 在请求处理之前进行调用（Controller方法调用之前）
     */
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
        throws Exception
    {
        System.out.printf("AllInterceptor==>preHandle被调用\n");
        return true;
    }

    /**
     * 请求处理之后进行调用，但是在视图被渲染之前（Controller方法调用之后）
     */
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
        ModelAndView modelAndView)
        throws Exception
    {
        System.out.println("AllInterceptor==>postHandle被调用");
    }

    /**
     * //在整个请求结束之后被调用，
     * 也就是在DispatcherServlet 渲染了对应的视图之后执行（主要是用于进行资源清理工作）
     */
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
        throws Exception
    {
        System.out.println("AllInterceptor==>afterCompletion被调用");
    }
}
